# ISO 7704:1985 — Withdrawn and superseded ISO standards

For ISO 7704:1985, item title is Water quality — Evaluation of membrane filters used for microbiological analyses; status code is 9599; successor is ISO/CD 7704 | ISO 7704:2023; withdrawn / published date is 1985-03-14, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7704:1985 _(verified: appears in the quote below)_
- **Item title:** Water quality — Evaluation of membrane filters used for microbiological analyses _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 7704 | ISO 7704:2023
- **Withdrawn / published date:** 1985-03-14 _(verified: appears in the quote below)_

## What the source says

> 14527,IS,,ISO 7704:1985,Water quality — Evaluation of membrane filters used for microbiological analyses,Qualité de l'eau — Évaluation des membranes filtrantes utilisées pour des analyses microbiologiques,1985-03-14,1,['07.100.20'],ISO/TC 147/SC 4,9599,,"[68772,78706]","['en','fr']",4,"<p>Gives a procedure for the evaluation and comparison of water-testing filters intended for the enumeration of specific organisms and mixed microbial populations. The procedure provides general guidelines for comparative testing of the recoveries of bacteria, yeasts and other fungi on membrane filters, as compared to recoveries by the spread plate and pour plate techniques.</p>"

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).